Hammer



Sept. 8, 1931. w, FERGUSON 1,822,394

HAMMER Filed May 29, 1930 2 Sheets-Shet 1 /N VENT OR" MM 2 BY A TTORNE Y Sept. 8, 1931. w FERGUSON 1,822,394

HAMMER Filed May 29, 1930 2 Sheets-Sheet 2 lNVENT'OR.

BY M

ATTO NE Patented Sept. 8, 1931 7 WILLIAM FERGUSON, OF FLINT, MICHIGAN HAMMER Application filed May 29, 1930. Serial No. 456,885.

This invention relates to specially designed hammers for use in removing indentations from the metal body and fenders of vehicles, such as automobiles.

Under the present trafiic conditions the fenders and other portions of automobiles are'frequently bent and distorted as a result of collisions and other accidents, and the work of restoring the distorted sheet metal struc- 10 ture of an automobile to its original or desired shape presents serious difliculty unless properly designed tools are at hand. In many cases the portion of the sheet metal structure of an automobile to be bumped-out 1 or restored to its original shape is more or less inaccessible, so that a specially constructed tool adapted to be used in a narrow or restricted space is needed to efiect the desired straightening or bumping out operalo tion.

The present invention therefore relates to what may be termed a special designed roughing out hammer, which is suificiently heavy to drive the bent or distorted portion of the sheet metal structure of an automobile back into position. This may be done by striking the bent portion of the sheet metal with a rounded or peening portion of the hammer, to be described, or by employing the hammer to deliver blows to a blade-like anvil or other tool held against the metal to be straightened.

In bumping-out certain portions of the sheet metal structure of an automobile, such for example as high crown fenders it may be necessary to reach up under the fender a substantial distanceback of the outside flange of the fender, in which case, if a hammer is employed to perform the bumping-out operation it should have a long reach from the handle connection to the peening or bumping-out surface.

One of the features of the present invention therefore resides in a hammer having a long curved shank extending from the handle .reeelving portion of the hammer and which terminates in a rounded cylinder-like head adapted for use as a peening tool and also as a dolly. The construction is suzh that when the handle of the hammer is grasped in the I present hammer.

hand the hammer can be swung upwardly to deliver the desired metal straightening blows to the inner concave surface of a crown fender.

While the hammer construction just described has many uses, it is particularly well adapted for use upon fenders having a tire receiving well, since the space at the sides of these wells is usually too narrow to admit a dolly, but permits the insertion of the rounded peening head and long curved shankof the Fenders provided with a tire receiving well frequently have a square rather than a rounded edge at the point where the well is secured to the fender so that the rounded peening end of the hammer cannot be used in working upon this portion of the fender. To meet this condition the hammer of the'present invention is provided with a second relatively long shank extending from the handle receiving portion, and this second shank terminates in a square head adapted for use in working upon the fender close to the well.

As a result of the present construction in which the hammer is provided with relatively long, oppositely extending shanks one of which terminates in a square headand the other in a cylinder-like peening head, the hammer is well adapted for many uses in straightening and restoring the sheet metal structure of an automobile to its former or desired shape.

The various features of the present inven tion, and the manner in which the hammer is desi ed to be used in performing certain operatlons, will be best understood from the following description in connection with the accompanying drawings which illustrate one good practical form of the invention.

In the drawings Fig. 1 is a perspective view of a hammer constructed in accordance with the present invention;

Fig. 2 is a side elevation thereof;

Fig. 3 is an elevation of the inner face of the hammer, the handle being shown in section;

Fig: 4 is an end view of the hammer, looking in the direction of the arrow of Fig. 2;

Fig. dis a similar view illustrating one use of the square end of the hammer, and

Fig. 7 is a perspective view showing the roughing out use of the present hammer upon a fender.

The special designed hammer of the present invention is preferably made relatively heavy so that it may be used to deliver strong blows to a bent fender or other distorted portion of an automobile in restoring the same approximately to the desired shape, or to cause its weight and inertia of rest to withstand the blows of a second hammer when the present hammer is used as a dolly. In practice-it is found that a desirable weight of the hammer is between three and four pounds.

In the embodiment of the invention illustrated the hammer has an intermediate portion 10 that is provided with the usual handle receiving opening 11' adaptedto receive an end of a handle 12 of the desired length.

The intermediate portion 10 of the hammer has the oppositely extending relatively long shanks 13 and 14.

The shank 13 as shown is straight and is provided at its out-er end with an enlarged head. The work engaging face 15 of this head is given a very slight crown and the side faces 16 of the head are disposed at right angles to the face 15 and to each other as shown, and the edges formed by the meeting of the faces 15 and 16 are relatively sharp as shown. As a result of this construction the square head of the hammer iswell adapted for use as a dolly, in connection with surfaces that are provided with a relatively sharp angle, and this head may also be used in various hammering operations.

The oppositely extending shank 14 is or may be considerably longer than the shank 13 and curves inwardly as shown so that it forms an are having its centre approximately at the point at which the handle is grasped in the hand, and this curved shank terminates in an enlarged rounded head 17.

As above stated one important use of the present hammer is as a roughing out tool that is employed to hammer the bent sheetmetal structure back into approximately its former shape, but in doing this it is important not to cut or injure the metal. It is therefore necessary that the head 17 of the hammer which is used in performing this roughing out work be so constructed that it will not cut or stretch the portion of the'sheet metal which the hammer strikes. The head 17 of the present hammer is therefore given the cylinder-like shape shown, and is formed so that the longitudinal axis of the cylinderlike head extends transversely of the shank 14 and handle 12, as will be apparent from the drawings. Furthermore the ends 18 of the cylinder-like head 17 are rounded as shown to further prevent the sheet metal structure of the automobile from being injured by the blows of the head 17.

The hammer shank 14 is made relatively long so that the distance between the head 17 and handle receiving portion of the hammer will be great enough to permit the use of the hammer to bump out high crown fenders such as indicated by 19 in Fig. 7 of the drawing or upon other parts where a long reach is required, and the length of the shank 13 is preferably suflicient to help balance the shank 14 and also to give this end of the hammer a substantial reach.

The head 16 is not adapted to hammer directly upon the sheet metal parts of an automobile body or fender as its sharp edges would tend to cut the metal, but this end of the hammer may well be employed to strike an anvil or other tool placed against the metal to be straightened.

In addition to the uses of the present hammer above mentioned it is particularly well adapted for use as a dolly in places where there is not sufficient room to insert the usual dolly block. For example Figs. 5 and 6 of the drawings show automobile fenders of the type having tire receiving wells 20 extending downwardly from the fender surface 21.

The space between the walls of the well 20 and outside flange 22 of the fender is usually relatively narrow so that it will not receive the ordinary dolly block, but will receive the head 17 of the hammer as will be apparent from Fig. 5, wherein the hammer is shown as being held by'the workman with its head 17 against the under face of the fender, while bumping-out blows are delivered to the upper face of the fender by a second hammer 23. In working upon the portion of the fender lying close to the well 20 or close to the main frame 24 the square end 16 of the hammer is employed as a dolly to accommodate the relatively'sharp angle of the fender at this point, as will be apparent from Fig. 6. When the head 16 is used in this manner the handle 12 may extend lengthwise of the well as shown.

It will be seen from the foregoing that the rounded head 17 may be freely employed in hammering the work into shape without cutting or injuring the same and that the head 17 may also be employed as a dolly, as shown in Fig. 5 where a substantial radius is desired, while the opposite square end 16 is used when a sharp angle is desired,-as shown in Fig. 6, also that the hammer may be employed for various hammering operations where a relatively heavy hammer is required.

What is claimed is:

1. A hammer for removing indentations from automobile bodies and fenders, compr1s1ng an intermediate portion formed with a handle receiving opening and havin relatively long oppositely extending shan s one of which curves inwardly over the handle, a cylinder-like peening head formed at the outer end of said curved shank so that it protrudes laterally from the opposite sides of the shank transversely of the handle and provided with ball-like ends, and a head at the outer end of the other shank.

2. A hammer for removing indentations from automobile bodies and fenders, comprising an intermediate portion formed with a handle receiving opening and having oppositely extending shanks long enough to reachthe inner wall of a deeply crowned fender, one shank being curved inwardly over the handle and provided with a cylinderlike peening head extending transversely of the handle and having ball-like ends that protrude from the opposite sides of the shank, and a head at the outer end of the other shank.

In testimony whereof, I have signed my name to this specification.

' WILLIAM FERGUSON. 

